According to the company, bugs in JavaScript are among the most common ways that attackers exploit. The technology is called JIT (Just-in-Time), and it’s meant to render sites faster, but it can also lead to security exploits. The new Edge feature improves browsing security by turning off the JIT (Just-in-Time) JavaScript engine and enabling additional security mitigations. Although disabling the technology will impact performance, most people won’t see a significant difference in the real world. In this guide, you will learn the steps to enable and configure the Super Duper Secure Mode on Microsoft Edge on Windows 11, Windows 10, and other platforms.

Enable security mitigations on Microsoft Edge

To enable security mitigations to make the browsing experience more secure, use these steps: Once you complete the steps, the browser will offer an extra layer of protection while surfing the internet.

Balanced: Adds security mitigations for sites you don’t frequently visit. This option makes most websites as expected and blocks security threats. Strict: Adds security mitigations for all sites. However, parts of sites might not work and block security threats.

If you enable and configure the security feature, but some websites are not working as expected, change the configuration level, add the site to the exception list, or turn off the feature. These instructions are meant for Windows 11, but the same steps will work on Windows 10 or any platform where the feature is supported. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.